US20100039270A1 - Testing device for lens module - Google Patents
Testing device for lens module Download PDFInfo
- Publication number
- US20100039270A1 US20100039270A1 US12/494,278 US49427809A US2010039270A1 US 20100039270 A1 US20100039270 A1 US 20100039270A1 US 49427809 A US49427809 A US 49427809A US 2010039270 A1 US2010039270 A1 US 2010039270A1
- Authority
- US
- United States
- Prior art keywords
- testing
- lens module
- image sensor
- tray
- testing device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0207—Details of measuring devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
- G01M11/0242—Testing optical properties by measuring geometrical properties or aberrations
- G01M11/0257—Testing optical properties by measuring geometrical properties or aberrations by analyzing the image formed by the object to be tested
Definitions
- the present disclosure relates to testing devices and, particularly, to a testing device for lens modules.
- a typical testing device includes a light source assembly for providing a predetermined testing specimen, a testing tray for supporting lens modules, and an image sensor for capturing image of the testing specimen formed by each lens module.
- the image sensor and/or the testing tray need to move relative to each other during the testing process. If the lens module is very small, for example, a lens module for a mobile phone, the gap between the image sensor and the lens module supported by the testing tray is very small, usually smaller than 2 mm. Therefore should the lens module to be tested tilts, the image sensor and the lens module may collide causing damage to one or the other.
- FIG. 1 is a schematic view of a testing device for lens module according to an exemplary embodiment.
- FIG. 2 is a cross-sectional view of a testing tray of the testing device of FIG. 1 .
- FIG. 3 is a schematic view of the testing device of FIG. 1 during a working state.
- the testing device 100 includes an image sensor 10 , a testing tray 20 , a light source assembly 30 , a detecting device 40 , a processor 50 , a display 60 , and a warning device 70 .
- the image sensor 10 could be a charge coupled device (CCD) or a complementary metal-oxide semiconductor transistor (CMOS).
- CMOS complementary metal-oxide semiconductor transistor
- the image sensor 10 is distanced from the testing tray 20 and is firmly secured to a robotic arm 11 .
- the robotic arm 11 is configured for driving the image sensor 10 to move up and down along a direction perpendicular to the testing tray 20 . Accordingly, a distance between the image sensor 10 and the testing tray 20 can be adjusted by the robotic arm 11 , thereby adjusting imaging definition of the lens modules 200 disposed on the testing tray 20 .
- the testing tray 20 is disposed between the light source assembly 30 and the image sensor 10 .
- the testing tray 20 includes a first surface 21 and a second surface 22 at two opposite sides thereof.
- the first surface 21 faces the image sensor 10
- the second surface 22 faces the light source assembly 30 .
- the testing tray 20 defines a plurality of through holes 23 running through the first surface 21 and the second surface 22 .
- Each through hole 23 has a receiving cavity 231 and a light transmission aperture 232 coaxially adjoining the receiving cavity 231 .
- the receiving cavity 231 is adjacent to the first surface 21 and configured for accommodating a lens module 200 to be tested therein.
- the depth of the receiving cavity 231 is less than the height of the lens module 200 .
- the light transmission aperture 232 is adjacent to the second surface 22 and has a diameter slightly smaller than the receiving cavity 231 . Accordingly, a step portion 24 is formed at adjoining position of the receiving cavity 231 and the light transmission aperture 232 , for supporting the lens module 200 thereon.
- the light transmission aperture 232 has a larger diameter than optical components (not shown) in the lens modules 50 to facilitate the transmission of light from the light source assembly 30 to the optical components.
- the light transmission aperture 232 can also be a trumpet-shaped void, and diameters in cross-section of the light transmission aperture 232 increase from the step portion 24 to the second surface 22 .
- the testing tray 20 can be moved in a plane parallel to the image sensor 10 .
- the light source assembly 30 is stationary and optically aligned with the image sensor.
- the light source assembly 30 is configured for providing a predetermined testing pattern/specimen. It is understood, in other embodiments, the testing tray 20 can be stationary, and both of the image sensor 10 and the light source assembly 30 are movable along a direction parallel to the testing tray 20 .
- the detecting device 40 is configured for detecting whether the lens module 200 to be tested has tilted relative to the testing tray.
- the detecting device 40 includes an emitting device 41 and a receiving device 42 .
- the emitting device 41 emits a ray 43 , such as laser, infrared ray, etc., along a direction substantially parallel to the first surface 21 of the testing tray 20 .
- the receiving device 42 is aligned with the emitting device 41 for receiving the ray 43 emitted from the emitting device 41 . Referring to FIG. 3 , the distance between ray 43 and the first surface 21 is slightly greater than the height of a portion of the lens module 200 extending out of the receiving cavity 231 of the through hole 23 , when the lens module 200 is not tilted.
- the detecting device 40 is not limited to the above-described structure, any devices capable of detecting whether the lens module 200 to be tested has tilted can be the detecting device 40 .
- the detecting device 40 can also be an image capturing device with image recognition software, the image capturing device can capture an image of the lens module 200 to be tested on the testing tray 20 , and then use the image recognition software to check whether the lens module 200 has tilted.
- the processor 50 is electrically connected to the image sensor 10 , the receiving device 42 , the display 60 , and the warning device 70 .
- the warning device is configured for generating an alarm signal to operators.
- the warning device can be a loudspeaker, a lamp, and so on.
- the processor 50 can save and analyze the image captured by the image sensor 10 , and control the movement of the robotic arm 11 .
- the receiving device 42 fails to receive the ray 43
- the processor 50 will stop the moving of the robotic arm 11 and the moving of the testing tray 20 , and control the warning device 70 to activate an alarm signal for operators.
- the display 60 can be used for displaying the image captured by the image sensor 10 .
- the lens module 200 to be tested when the lens module 200 to be tested has tilted on the testing tray 20 , it will block the ray 43 emitted from the emitting device 41 , and the receiving device 42 will fail to receive the ray 43 .
- the processor 50 will stop the moving of the robotic arm 11 and the moving of the testing tray 20 . Therefore, the image sensor 10 may be righted before having tilted enough to collide with the lens module 200 , thus avoiding damage to the image sensor 10 and/or the lens module 200 . Furthermore, because the processor 50 can also control the warning device 70 to activate an alarm signal, operators can right the tilted lens module 200 as soon as possible.
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Geometry (AREA)
- Studio Devices (AREA)
- Microscoopes, Condenser (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
Description
- 1. Technical Field
- The present disclosure relates to testing devices and, particularly, to a testing device for lens modules.
- 2. Description of Related Art
- As is well known, testing processes play a significant role in ensuring imaging quality of lens modules. A typical testing device includes a light source assembly for providing a predetermined testing specimen, a testing tray for supporting lens modules, and an image sensor for capturing image of the testing specimen formed by each lens module. The image sensor and/or the testing tray need to move relative to each other during the testing process. If the lens module is very small, for example, a lens module for a mobile phone, the gap between the image sensor and the lens module supported by the testing tray is very small, usually smaller than 2 mm. Therefore should the lens module to be tested tilts, the image sensor and the lens module may collide causing damage to one or the other.
- What is needed, therefore, is a testing device for lens modules capable of detecting whether the lens module to be tested is tilted to overcome or at least mitigate the above-described problem.
- Many aspects of the present testing device for lens module can be better understood with reference to the accompanying drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present testing device for lens module. In the drawings, all the views are schematic.
-
FIG. 1 is a schematic view of a testing device for lens module according to an exemplary embodiment. -
FIG. 2 is a cross-sectional view of a testing tray of the testing device ofFIG. 1 . -
FIG. 3 is a schematic view of the testing device ofFIG. 1 during a working state. - Embodiments of the present disclosure will now be described in detail below, with reference to the accompanying drawings.
- Referring to the
FIG. 1 , atesting device 100 used for testing lens modules 200 (seeFIG. 3 ), according to an exemplary embodiment, is shown. Thetesting device 100 includes animage sensor 10, atesting tray 20, alight source assembly 30, a detectingdevice 40, aprocessor 50, adisplay 60, and awarning device 70. - The
image sensor 10 could be a charge coupled device (CCD) or a complementary metal-oxide semiconductor transistor (CMOS). Theimage sensor 10 is distanced from thetesting tray 20 and is firmly secured to arobotic arm 11. Therobotic arm 11 is configured for driving theimage sensor 10 to move up and down along a direction perpendicular to thetesting tray 20. Accordingly, a distance between theimage sensor 10 and thetesting tray 20 can be adjusted by therobotic arm 11, thereby adjusting imaging definition of thelens modules 200 disposed on thetesting tray 20. - The
testing tray 20 is disposed between thelight source assembly 30 and theimage sensor 10. Thetesting tray 20 includes afirst surface 21 and asecond surface 22 at two opposite sides thereof. Thefirst surface 21 faces theimage sensor 10, and thesecond surface 22 faces thelight source assembly 30. Further referring toFIG. 2 , thetesting tray 20 defines a plurality of throughholes 23 running through thefirst surface 21 and thesecond surface 22. Each throughhole 23 has areceiving cavity 231 and alight transmission aperture 232 coaxially adjoining thereceiving cavity 231. Thereceiving cavity 231 is adjacent to thefirst surface 21 and configured for accommodating alens module 200 to be tested therein. The depth of thereceiving cavity 231 is less than the height of thelens module 200. Thelight transmission aperture 232 is adjacent to thesecond surface 22 and has a diameter slightly smaller than thereceiving cavity 231. Accordingly, astep portion 24 is formed at adjoining position of thereceiving cavity 231 and thelight transmission aperture 232, for supporting thelens module 200 thereon. Thelight transmission aperture 232 has a larger diameter than optical components (not shown) in thelens modules 50 to facilitate the transmission of light from thelight source assembly 30 to the optical components. In other embodiments, thelight transmission aperture 232 can also be a trumpet-shaped void, and diameters in cross-section of thelight transmission aperture 232 increase from thestep portion 24 to thesecond surface 22. Thetesting tray 20 can be moved in a plane parallel to theimage sensor 10. - In the present embodiment, the
light source assembly 30 is stationary and optically aligned with the image sensor. Thelight source assembly 30 is configured for providing a predetermined testing pattern/specimen. It is understood, in other embodiments, thetesting tray 20 can be stationary, and both of theimage sensor 10 and thelight source assembly 30 are movable along a direction parallel to thetesting tray 20. - The detecting
device 40 is configured for detecting whether thelens module 200 to be tested has tilted relative to the testing tray. In the present embodiment, the detectingdevice 40 includes anemitting device 41 and areceiving device 42. Theemitting device 41 emits aray 43, such as laser, infrared ray, etc., along a direction substantially parallel to thefirst surface 21 of thetesting tray 20. Thereceiving device 42 is aligned with theemitting device 41 for receiving theray 43 emitted from theemitting device 41. Referring toFIG. 3 , the distance betweenray 43 and thefirst surface 21 is slightly greater than the height of a portion of thelens module 200 extending out of thereceiving cavity 231 of the throughhole 23, when thelens module 200 is not tilted. If thelens module 200 is tilted, the height of the portion of thelens module 200 extending out of thereceiving cavity 231 of the throughhole 23 will be greater, and theray 43 will be blocked by thelens module 200, and thereceiving device 42 cannot receive theray 43. The detectingdevice 40 is not limited to the above-described structure, any devices capable of detecting whether thelens module 200 to be tested has tilted can be the detectingdevice 40. For example, the detectingdevice 40 can also be an image capturing device with image recognition software, the image capturing device can capture an image of thelens module 200 to be tested on thetesting tray 20, and then use the image recognition software to check whether thelens module 200 has tilted. - The
processor 50 is electrically connected to theimage sensor 10, thereceiving device 42, thedisplay 60, and thewarning device 70. The warning device is configured for generating an alarm signal to operators. The warning device can be a loudspeaker, a lamp, and so on. Theprocessor 50 can save and analyze the image captured by theimage sensor 10, and control the movement of therobotic arm 11. When thereceiving device 42 fails to receive theray 43, theprocessor 50 will stop the moving of therobotic arm 11 and the moving of thetesting tray 20, and control thewarning device 70 to activate an alarm signal for operators. Thedisplay 60 can be used for displaying the image captured by theimage sensor 10. - In the present embodiment, when the
lens module 200 to be tested has tilted on thetesting tray 20, it will block theray 43 emitted from theemitting device 41, and thereceiving device 42 will fail to receive theray 43. Theprocessor 50 will stop the moving of therobotic arm 11 and the moving of thetesting tray 20. Therefore, theimage sensor 10 may be righted before having tilted enough to collide with thelens module 200, thus avoiding damage to theimage sensor 10 and/or thelens module 200. Furthermore, because theprocessor 50 can also control thewarning device 70 to activate an alarm signal, operators can right the tiltedlens module 200 as soon as possible. - While certain embodiments have been described and exemplified above, various other embodiments will be apparent to those skilled in the art from the foregoing disclosure. The invention is not limited to the particular embodiments described and exemplified, and the embodiments are capable of considerable variation and modification without departure from the scope and spirit of the appended claims.
Claims (13)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810303755 | 2008-08-14 | ||
CN200810303755.3 | 2008-08-14 | ||
CN2008103037553A CN101650258B (en) | 2008-08-14 | 2008-08-14 | Lens module detector |
Publications (2)
Publication Number | Publication Date |
---|---|
US20100039270A1 true US20100039270A1 (en) | 2010-02-18 |
US8279426B2 US8279426B2 (en) | 2012-10-02 |
Family
ID=41672540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/494,278 Expired - Fee Related US8279426B2 (en) | 2008-08-14 | 2009-06-30 | Testing device for lens module |
Country Status (2)
Country | Link |
---|---|
US (1) | US8279426B2 (en) |
CN (1) | CN101650258B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110149066A1 (en) * | 2009-12-23 | 2011-06-23 | Foxsemicon Integrated Technology, Inc. | Method and system for evaluating light uniformity through an optical lens |
US20130148110A1 (en) * | 2011-12-07 | 2013-06-13 | Cheng-Shiun Wu | Inspecting system for lens module |
US10360531B1 (en) * | 2016-12-19 | 2019-07-23 | Amazon Technologies, Inc. | Robot implemented item manipulation |
US10416455B2 (en) * | 2015-05-20 | 2019-09-17 | Lg Electronics Inc. | Head mounted display |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102252821B (en) * | 2011-07-25 | 2013-07-03 | 孙宏 | Parameter detection method for optical lens and detecting instrument thereof |
TW201326774A (en) * | 2011-12-19 | 2013-07-01 | Hon Hai Prec Ind Co Ltd | Lens electrical testing system and testing method thereof |
CN105405115B (en) * | 2014-08-19 | 2018-11-23 | 宁波舜宇光电信息有限公司 | A kind of image mould group is to heart system and method |
KR102522899B1 (en) * | 2016-02-05 | 2023-04-19 | (주)테크윙 | Apparatus for inspecting loaded status of electronic components |
CN106851258B (en) * | 2016-12-27 | 2018-09-25 | 歌尔股份有限公司 | The assemble method of camera lens and image sensor to be assembled |
CN108540793B (en) * | 2017-03-03 | 2020-04-14 | 光宝电子(广州)有限公司 | Positioning and adjusting system of camera module |
CN110855856B (en) * | 2018-08-21 | 2021-06-18 | 宁波舜宇光电信息有限公司 | Assembling method of multi-group optical lens based on motor optical assembly |
CN111141494B (en) * | 2019-12-30 | 2022-03-22 | Oppo广东移动通信有限公司 | Test method and test system |
CN113848663A (en) * | 2020-06-10 | 2021-12-28 | 三赢科技(深圳)有限公司 | Lens module testing device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6154274A (en) * | 1992-12-21 | 2000-11-28 | Johnson & Johnson Vision Products, Inc. | Lens inspection system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2883129B2 (en) * | 1989-11-14 | 1999-04-19 | 株式会社トプコン | Lens meter |
AU649291B2 (en) * | 1990-12-19 | 1994-05-19 | Bodenseewerk Geratetechnik Gmbh | Process and apparatus for examining optical components, especially optical components for the eye and device for illuminating clear-transparent test-objects |
CN100529744C (en) * | 2004-12-29 | 2009-08-19 | 鸿富锦精密工业(深圳)有限公司 | Optical detection device and detection method |
CN2859455Y (en) * | 2005-07-28 | 2007-01-17 | 上海环达计算机科技有限公司 | Electronic product and its inclination checkout gear |
CN2932440Y (en) * | 2006-08-17 | 2007-08-08 | 比亚迪股份有限公司 | Camera lens module testing clamp |
CN101206180B (en) * | 2006-12-20 | 2010-09-29 | 鸿富锦精密工业(深圳)有限公司 | Lens module detecting device and detecting method |
-
2008
- 2008-08-14 CN CN2008103037553A patent/CN101650258B/en not_active Expired - Fee Related
-
2009
- 2009-06-30 US US12/494,278 patent/US8279426B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6154274A (en) * | 1992-12-21 | 2000-11-28 | Johnson & Johnson Vision Products, Inc. | Lens inspection system |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110149066A1 (en) * | 2009-12-23 | 2011-06-23 | Foxsemicon Integrated Technology, Inc. | Method and system for evaluating light uniformity through an optical lens |
US20130148110A1 (en) * | 2011-12-07 | 2013-06-13 | Cheng-Shiun Wu | Inspecting system for lens module |
US8780341B2 (en) * | 2011-12-07 | 2014-07-15 | Hon Hai Precision Industry Co., Ltd. | Inspecting system for lens module |
US10416455B2 (en) * | 2015-05-20 | 2019-09-17 | Lg Electronics Inc. | Head mounted display |
US10360531B1 (en) * | 2016-12-19 | 2019-07-23 | Amazon Technologies, Inc. | Robot implemented item manipulation |
Also Published As
Publication number | Publication date |
---|---|
US8279426B2 (en) | 2012-10-02 |
CN101650258B (en) | 2012-03-14 |
CN101650258A (en) | 2010-02-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8279426B2 (en) | Testing device for lens module | |
US10578724B2 (en) | LIDAR optics alignment systems and methods | |
US20160332182A1 (en) | Foreign object detecting device and coating system | |
CN104024835B (en) | Automatic shape inspection apparatus | |
KR101576875B1 (en) | Apparatus for detecting end portion position of strip-like body, and method for detecting end portion position of strip-like body | |
JP2012004306A (en) | Adsorption nozzle inspection device of component mounting machine | |
TW201416165A (en) | Device for manufacturing mold core | |
JP2007315961A (en) | Lens-measuring device | |
KR102177005B1 (en) | Machine vision systems and alignment devices for substrate alignment | |
CN103512491A (en) | Equipment and method for detecting position of LED phosphor, and method of mounting lens | |
KR101774005B1 (en) | Real-time measurement image analyzer for surface falling particles | |
US9733067B2 (en) | Apparatus for detecting heights of defects on optical glass | |
KR102558405B1 (en) | Semiconductor wafer defect inspection device and defect inspection method | |
CN111474598A (en) | Electronic component mounting state detection device | |
WO2013153645A1 (en) | Image pickup device and image processing device | |
TWI775314B (en) | Optical system, positioning detection method and wafer notch positioning detection | |
US11336884B2 (en) | Camera module having image sensor and three-dimensional sensor | |
KR102284121B1 (en) | Smart vision inspection module for display inspection | |
KR101351004B1 (en) | Carrying apparatus having camera array detecting defects | |
KR102016493B1 (en) | Camera module | |
KR20190102623A (en) | System and method for inspecting lead | |
JP2014225712A (en) | Suction nozzle inspection apparatus of component mounting machine | |
KR20120019075A (en) | Cutting apparatus | |
US8467043B2 (en) | Lens module testing apparatus | |
KR102206275B1 (en) | An Apparatus for Reworkting a Small Size of a Led Element Automatically |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HON HAI PRECISION INDUSTRY CO., LTD.,TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, MONG-TUNG;REEL/FRAME:022889/0852 Effective date: 20090625 Owner name: HON HAI PRECISION INDUSTRY CO., LTD., TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, MONG-TUNG;REEL/FRAME:022889/0852 Effective date: 20090625 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20161002 |